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101. 发明专利

JP2004066268A Laser welding method and device 审中-公开
公开(公告)号：JP2004066268A
公开(公告)日：2004-03-04
申请号：JP2002226137
申请日：2002-08-02
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MATSUMOTO SEIICHI , AWANO YOSHIRO , SANPEI KAZUHISA , SAEKI TAKAYUKI , KITAYAMA KOJI , WATANABE GORO , AZUMA HIROZUMI
IPC分类号： B23K26/00 , B23K26/20
摘要： PROBLEM TO BE SOLVED: To reduce the occurrence of defective welding by reducing a space between two overlapped members to be welded while maintaining an advantage that a work is welded only from one side thereof. SOLUTION: In a lap welding in which a work 2 and laser beams 1a are moved in a direction of a welding line 21 while the work 2 with overlapped members 2a and 2b formed of a magnetic material is irradiated with laser beams 1a, and a portion near the welding line 21 of the work 2 is pressed by a press roller 3 from the laser beams irradiation side (a face side), a magnet roller 6 is provided on the face side. The magnet roller 6 is fitted to a torch 1 so as to rotatively travel on the work 2 while attracting the member 2b on a back side toward the member 2a on the face side by the magnetic force in a vicinity of the welding line facing the press roller 3 across the welding line 21. COPYRIGHT: (C)2004,JPO

102. 发明专利

JP2003089024A BODY STRUCTURE FOR CANTILEVER RECTANGULAR COORDINATE TYPE MACHINE 审中-公开
公开(公告)号：JP2003089024A
公开(公告)日：2003-03-25
申请号：JP2001278647
申请日：2001-09-13
申请人： TOYODA MACHINE WORKS LTD , TOYOTA MOTOR CORP
发明人： UEMURA SATORU , OTAKE FUMIO , SANPEI KAZUHISA , TAKAHASHI SATORU
IPC分类号： B25J9/02 , B23K26/08 , B23Q1/00 , B23Q1/01 , B23Q1/56
摘要： PROBLEM TO BE SOLVED: To provide a body structure for a cantilever rectangular coordinate type machine that secures compactness and is capable of highly accurate positioning. SOLUTION: A slide body 22 is slidably engaged in an X-axis guide groove 21 formed along an X-axis in an X-axis mounting surface 14 at a top surface of a column 12. An L-shaped bracket 23 is fixed to an upper part of the slide body 22. A cantilever Y-axis mounting bracket 26 is fixed to an upper part of the L-shaped bracket 23 and extends forward (toward a work table 4). An X-axis linear guide 24 is provided in parallel with the X-axis guide groove 21 at an upper part of a back surface of the column 12 that is opposite to a side over which the Y-axis mounting bracket 26 extends. A guide groove 25 is provided at a lower end of the L-shaped bracket 23 and slideably engages with the X-axis linear guide 24. Since the guide groove 25 provided at the lower end of the L-shaped bracket 23 engages with the X-axis linear guide 24 fixed to the column 12, a turning moment of the cantilever Y-axis mounting bracket 26 is restricted by upper and lower surfaces of the X-axis linear guide 24.

103. 发明专利

JP2002295252A EXHAUST MANIFOLD COLLECTIVE PART STRUCTURE 审中-公开
公开(公告)号：JP2002295252A
公开(公告)日：2002-10-09
申请号：JP2002081316
申请日：2002-03-22
申请人： TOYOTA MOTOR CORP
发明人： WATANABE YOSHIMASA , YOKOTA MAKOTO , YASUHARA SHIGEKI , SANPEI KAZUHISA , TAKAHASHI SATORU
IPC分类号： F01N13/10 , F01N13/18 , F01N7/10 , F01N7/18
摘要： PROBLEM TO BE SOLVED: To provide an exhaust manifold set part structure, capable of improving reliability in strength and ensuring the strength of the collective part. SOLUTION: In the exhaust manifold set part structure, inserting an exhaust manifold 10 welded with a plurality of pipes 6, 7, 8, 9 into a set tube 11 and directly or indirectly welding thereof, a plurality of pipes 6, 7, 8, 9 are inserted into an intermediate member 27 and welded, and the rigidity at the outer periphery of steam line R is improved by relaxing the thermal stress exerted to the welded part of the collective part, resulting from inserting the intermediate member 27 into the collective tube 11 and welding thereof or making only one side of separation walls 32, 33 into the curved surface wall.

104. 发明专利

JP2002257149A COUPLING METHOD AND CAM SHAFT 失效
公开(公告)号：JP2002257149A
公开(公告)日：2002-09-11
申请号：JP2001054162
申请日：2001-02-28
申请人： TOYOTA MOTOR CORP
发明人： SANPEI KAZUHISA
IPC分类号： B23P11/02 , B23K26/00 , B23P13/00 , F01L1/04 , F16D1/06 , F16D1/064 , F16D1/09 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To provide a coupling method by which a coupling member can be accurately fitted onto the same shaft in a simple constitution and a cam shaft in which a cam piece is accurately fitted on the shaft. SOLUTION: In the cam shaft, a cam piece 2 is jointed to the coupling face of the cam shaft 1 and the circumferential face (coupling face 3) of the jointing part of the cam shaft 1 on which the cam piece 2 is connected is worked to have a right circular form and a plurality of recessed grooves 4 are formed thereon, and a fitting hole 5 for the cam piece 3 is fixed to the coupling face 3 of the cam shaft 1 by shrinkage fit. The recessed grooves 4 on the coupling face 3 of the cam shaft 1 worked to have a right circular form are formed by laser beam machining respectively.

105. 发明专利

JP2001132413A VALVE LIFER FOR INTERNAL COMBUSTION ENGINE, AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2001132413A
公开(公告)日：2001-05-15
申请号：JP31685499
申请日：1999-11-08
申请人： TOYOTA MOTOR CORP
发明人： SANPEI KAZUHISA
IPC分类号： B21D53/84 , B21K1/20 , F01L1/08 , F01L1/14 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide a valve lifter for an internal combustion engine, and a manufacturing method for that capable of more easily forming a boss, etc., for stepping rotation of it while keeping roundness as a valve lifter. SOLUTION: In an oscillation follower 20 abutting to a three-dimensional cam 2, a groove 22 to be engaged with a pin 13 integrally formed with a hard metal tip 32 is formed. The rotation stopping boss 15 for regulating rotation of the valve lifter 11 and a slide groove 12 for containing the oscillation follower 20 are integrally formed with the valve lifter 11 by press work. For improving abrasion resistance, nitriding is applied to a slide part. The hard metal tip 32 is jointed with a back surface of the valve lifter 11 by welding or the like for increasing hardness of an abutting surface to an end part (stem end) of a valve stem 31.

106. 发明专利

JPH11210413A MANUFACTURE OF CAMSHAFT, CAM LOBE POSITIONING DEVICE, AND CAMSHAFT MANUFACTURING DEVICE 失效
公开(公告)号：JPH11210413A
公开(公告)日：1999-08-03
申请号：JP956198
申请日：1998-01-21
申请人： TOYOTA MOTOR CORP
发明人： SANPEI KAZUHISA
IPC分类号： F01L1/04 , F16B4/00 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To eliminate a problem of the occurrence of tempering by heating an outer peripheral face of a cam lobe to a quenching temperature and fitting a shaft into a shaft fitting hole of the cam lobe after heating an inner peripheral face of the shaft fitting hole of the cam lobe up to a shrink fit temperature when the shaft is shrink fitted into the shaft fitting hole of the cam lobe. SOLUTION: When a shaft is shrink fitted into a cam lobe 11, the cam lobe 11 is first placed on a reference plate 20a provided on a jig foundation 20, and a center pin 22 is fitted in a shaft fitting hole 12. Moreover, a phase determining pin 24 is fitted into an insertion hole 13 to position and fix it. Two clampers 25 are operated in this state to press the cam lobe 11 from above, and then an outer peripheral face of the cam lobe 11 is heated up to a quenching temperature through a high frequency coil 26 and an inner peripheral face of a shaft fitting hole 12 is heated up to a shrink fitting temperature. Then, a shaft 16 held by a chuck 19 is lowered and is fitted into the shaft fitting hole 12 of the cam lobe 11 to integrate the cam lobe 11 with the shaft 16 by shrink fitting.

107. 发明专利

JPH1136831A THREE-DIMENSIONAL CAMSHAFT AND ITS MANUFACTURE 失效
公开(公告)号：JPH1136831A
公开(公告)日：1999-02-09
申请号：JP19368697
申请日：1997-07-18
申请人： TOYOTA MOTOR CORP
发明人： SANPEI KAZUHISA
IPC分类号： F01L1/04 , F01L1/047 , F01L1/08 , F01L3/24 , F01L13/00
摘要： PROBLEM TO BE SOLVED: To easily and surely determine the position for assembling a three- dimensional cam member on an axial material (shaft). SOLUTION: An elliptic pole surface is provided, which is extended in parallel with an axial center out of the high nose side end part of a three-dimensional cam member 11 to be assembled with a three-dimensional cam shaft. When the cam member 11 is to be assembled with an axial material, jigs 15 and 16 having a grooves in a V shape each are pressed to the cam member so as to be held therein at the cam nose side and its opposite side of the cam member 11. Abutting the parallel surface of the cam member 11 against the end surfaces (reference surface) 17 and 18 of the V shaped groove of the jigs 15 and 16 thereby allows the position of the oxial line of a hole 13 for the cam member 11 and an angle in the rotational direction around the aforesaid axial line to be fixed.

108. 发明专利

JPH10159519A VALVE TIMING CONTROLLING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10159519A
公开(公告)日：1998-06-16
申请号：JP32168296
申请日：1996-12-02
申请人： TOYOTA MOTOR CORP
发明人： ISHII YOSHIKAZU , HAMAGURI TOSHIAKI , SANPEI KAZUHISA
IPC分类号： F01L1/34
摘要： PROBLEM TO BE SOLVED: To prevent erroneous release of a lock pin by accident due to the work of the air mixed in oil when an engine starts in a valve timing controlling device provided with a lock pin. SOLUTION: A valve timing changing mechanism, which has a lock pin 43 and oil pressure chambers 44 and 47 for releasing this lock pin 43 may release erroneously the locking by the lock pin 43 by action of the air mixed in oil to the oil pressure chamber 44 before oil pressure is sufficiently supplied when an engine starts. In order to prevent such accident, a pressure relief passage is provided in the oil pressure chamber 44, discharging the air mixed in oil outside.

109. 发明专利

JPH09324613A VARIABLE VALVE TIMING MECHANISM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH09324613A
公开(公告)日：1997-12-16
申请号：JP8511997
申请日：1997-04-03
申请人： TOYOTA MOTOR CORP
发明人： SANPEI KAZUHISA , IIDA TATSUO
IPC分类号： F01L1/34
摘要： PROBLEM TO BE SOLVED: To secure startability of an internal combustion engine and enlarge a variable area of a valve timing. SOLUTION: A variable valve timing(VVT) mechanism 10 for an internal combustion engine varies a valve timing of an intake valve. The VVT 10 has a sprocket drivingly connected to a crank shaft, a rear plate fixed to an intake cam shaft, and a rotor 12 fixed to the rear plate. Projections 115 are equally spaced on the sprocket and recessions 114 are formed between the projections 115. Each projection 115 has a housing hole 117 in which a lock pin 20 is slidably housed. The lock pin 20 is engaged with a lock recession 145 formed on a rear plate in the state that the rotor 12 is rotated in the phase advancing direction from the most phase lag position by a specified angle α, for regulating relative rotation between the sprocket and the rear plate.

110. 发明专利

JPH09280019A VALVE TIMING VARIABLE DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH09280019A
公开(公告)日：1997-10-28
申请号：JP9395596
申请日：1996-04-16
申请人： TOYOTA MOTOR CORP
发明人： SANPEI KAZUHISA
IPC分类号： F01L1/34 , F01L1/344
摘要： PROBLEM TO BE SOLVED: To prevent the improper operation due to foreign matter in fluid and improve the maintenance property of a valve timing variable device which is operated by pressure of fluid in the valve timing variable device. SOLUTION: A phase change mechanism 12 provided on a cam shaft 11 has a housing 23 fixed on a driven gear 17, a vane 18 fixed on the cam shaft 12, and a cover 19. A first recessed section 32 and a second recessed section 33 are formed at a tip of the cam shaft 12, and a hydraulic passage P is opened in a bottom section 33a of the second recessed section 33. An insertion hole 34 which is communicated with an opening of the first recessed section 32 is formed in the vane 18, and a mounting hole 35 is formed in the cover 19. A filter 50 is arranged in the second recessed section 33. An OCV 36 is inserted into the insertion hole 34 and the first recessed section 32 through the mounting hole 35 and is fixed by a nut 39. The filter 50 is fixed in a condition in which it is pressed by a spring 53 provided between the OCV 36 and it.

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